Closed-loop control for harmonic current suppression in DTP-PMSM based on QRESO

In recent years, great progress has been made in MPC of DTP-PMSM. In order to solve the computational burden caused by a large number of voltage vectors, virtual voltage vector control is introduced. However, this method eliminates the voltage vector used to control the harmonic plane, resulting in open-loop control of the harmonic subplane. A predictive current control strategy based on a quasi-resonant extended state observer is proposed. Unlike traditional virtual vectors that generate zero mean voltage in the x-y subspace, the rotating non-zero voltage vector dynamically adjusts by modulating the residence time of the three adjacent large vectors and the zero vector during the control period, thus realizing the closedloop current control in x-y subspace.